Error importing from Onenote. Too many requests after ~500 notes imported.

[alphaOri]

Import unsuccessful
We failed to import the selected files. Please try again.
"1 errors occured

1. Failed to get notebook (original error: The app has issued too many requests on behalf of this user in a short time period.). (Request failed with status code: 429)."

[thecodrr]

OneNote importer is notoriously buggy due to the broken API provided by Microsoft. You can instead use something like https://github.com/alxnbl/onenote-md-exporter to export your notes to markdown and then import them via the importer.